Always keep Kobold Libarian, Beetle, Mortal Coil, and Vulgar Homunculus. If your against paladin or shaman or any other board based class keep defile and if you have a low curve, keep hellfire. Only keep the Spellstone if you have Homunculus or Librarian in your hand or if you decided to keep a Hellfire. Only keep Dreadlord if your opponent is a paladin as Dreadlord is essentially a single handed paladin killer.
My idea was to make a control warlock list that doesn’t rely as heavily on Dark Pact and Possessed Lackey. This deck is akin to control warlock decks back in Knights of the Frozen Throne but it contains some of the new powerful tools from Witchwood and Kobolds. I decided to put Elise the Trailblazer in the deck as opposed to Rin, the First Disciple as I personally find that Elise the Trailblazer is faster than Rin and using the Baleful Bankers and Zola the Gorgon you can get multiple copies of her which in my opinion is more value then the semi-reliable Rin. Most times Rin just gives me poorly stated bodies whereas Elise gives more diverse cards that are more than just a pile of stats.